Fire-extinguisher.



G. J. FINNBGAN.

I FIRE EXTINGUISHER. APPLIGATIQN FILED MAR-16, 1912.

Patented Oct. 29, 1912.

ranrrr oration.

- GEORGE J.-FI1\TNEGA1\T, OF LOCKPOR'I, NEW YORK.

FIRE-EXTINGUISHER.

To all n /mm it may concern p Be it known that I, GEORGE J. FINNEGAN, acitizen of the United States, residing at Lockport, in the county ofNiagara and -when subjected to a predetermined high temperature. andwhich also cause an alarm to be sounded; and 1t conslsts 1n the novelconstructlon and combination of the parts hereinafter fully describedand claimed.

i A second circuit wire 14 may also be secured 15 on its upper side velectric circuit.

In the drawings, Figure l is a side view of a fire extinguisher valvemechanism con structed according to this invention. Fig. 2 is a planview of the same. Fig. 3 is a cross section through the valve, taken onthe line -50 in Fig. 2. I

In carrying out this invention a supply pipe 2 for water is provided,and 3 is a short pipe section inserted in the supply pipe and providedwith an enlargement or shoulder 4, upon its upper side, rangedhorizontally. A short tubular nozzle 5 projects upwardly from the middlepart of the shoulder 4:. Four guide bars 6 project upwardly from thefour corners of the shoulder at, and? is a plate of insulating materialsecuredto the upper ends of the guide bars 6. A valve.plate 8 is arranged to slide vertically upon the guide bars 6, and it has acup-shaped valve 9 on its underside, which valve normally incloses thenozzle 5 and prevents any water from issuing through it. A:contactspring 10 is secured to the plate 7 by a screw 11, and. a circuit wire12 is also secured to the screw 11. The valve has a plug-shaped facing13.

to the valve plate 8, or-to any other suitable part of the device. Thewires 12 and 14c have a call-bell and battery of approved constructionconnected to them, so that an alarm is sounded when the electric circuitis closed. The valve plate 8 has a projecting lug which when raisedbears spring and closes the Springs 15 are provided on the guide bars ,6between the shoulder 4 andthe valve plate, for raising the valve plateagainst the contact Specification of Letters Patent. Application filedMarcela, 1912. Serial No. 684,254.

which shoulder is ar- Patented @ct. 29,1912.

and valve. The contact spring 10 also ser e as a spring butter for thevalve and its vaEi'o plate. A fastening hook 16 is secured at one sideof the pipe section or shoulder 4, and a lever 17 is pivoted by a pin 18at the other side of the'pipe section. A hook 19 is arranged at themiddle part of the lever, and the lever has a foot plate or handle 20 atits free end. A pin 21 is provided for engaging ,with any hole of aseries of holes 22 in the pipe section, and this pin operates to retainthe lever in position when depressed. A strip or narrow plate 24 offusible metal is provided. One end of this plate 24 is hooked onto thefastening 16, and its other end is attached to the hook 19. The lever ispressed down so as to strain the fusible strip 24 tightly over theprojecting lug 15 on the valve plate and hold the valve in its' closedposition, and the pin 21 is then inserted in one of the holes 22 so asto hold the lever in place. is made of an alloy which melts when exposedto a predetermined high temperature. When a fire occurs in the vicinityof this device the fusible strip melts, and the springs 15 open thevalve, and close the electric circuit so that an alarm is sounded. Thewater is discharged through the nozzle, and is defiected and sprayed inall directions by impact against the cup-shaped valve. The action of thevalve is regulated in a measure by the spring buffer above it. whichpermits it to adapt itself automatically to variations in the pressureof the Water in the pipe.

What I claim is:

1. In a fire extinguisher, the combination, with a pipe section providedwith a nozzle, of guide bars secured to the pipe section, a platesliclable on the guide bars and provided with a valve for closing thenozzle, springs arranged between the said plate and pipe sectionfor-opening the valve, and a strip of fusiblemetal strained over thesaid plate and having its ends secured to the respective sides of thepipe section and normally holding thevalve closed.

2. In a fire extinguisher, the combination, with a pipe section providedwith a nozzle, of guide bars secured to the pipe section, a plateslidable on the guide bars and provided witha valve for closing thenozzle, springs arranged between the said plate and pipe section foropening the valve, a strip of fusible metal secured to one side of thepipe section at one end and extending over the The fusible metal stripsaid plate, a lever pivoted to the other side of the pipe section andoperatively connected to the other end of the said strip, toning devicefor securing the said lever after the valve has been closed.

3. In a fire extinguisher, the combination, with a pipe section providedWith a nozzle,

of guide bars secured to the pipe section, a

plate slidable on the guide bars and pro vided with a valve for closingthe nozzle, springs arran ed between the said plate and pipe section oropening the valve, a stationary plate of insulating material secured 5to the guide bars above the slidable plate, a contact spring for thevalve plate secured and a fas- I to the stationary plate, and a strip offusible metal strained over the valve plate and having its ends securedto the respective sides of the pipe section and normally holding thevalve closed.

In testimony whereof I have affixed my signature in the presence of twowitnesses. GEORGE J. FINNEGAN. Witnesses:

EDWARD G. PARKER, MABEL L. LERCH Copies of this patent may be obtainedfor five cents each, by addressing the Commissioner of Eatcnts,

Washington, D. C.

